JP2005501870A - Novel imidazopyridine compounds with therapeutic effects - Google Patents
Novel imidazopyridine compounds with therapeutic effects Download PDFInfo
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- JP2005501870A JP2005501870A JP2003523243A JP2003523243A JP2005501870A JP 2005501870 A JP2005501870 A JP 2005501870A JP 2003523243 A JP2003523243 A JP 2003523243A JP 2003523243 A JP2003523243 A JP 2003523243A JP 2005501870 A JP2005501870 A JP 2005501870A
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- Prior art keywords
- alkyl
- compound
- formula
- het
- hydroxylated
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- 125000004857 imidazopyridinyl group Chemical class N1C(=NC2=C1C=CC=N2)* 0.000 title abstract 2
- 230000001225 therapeutic effect Effects 0.000 title 1
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- 238000011282 treatment Methods 0.000 claims abstract description 9
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- 230000002265 prevention Effects 0.000 claims abstract description 5
- 150000001875 compounds Chemical class 0.000 claims description 96
- 229910052757 nitrogen Inorganic materials 0.000 claims description 29
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 21
- 150000003839 salts Chemical class 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- -1 nitro, amino Chemical group 0.000 claims description 15
- 229910052736 halogen Inorganic materials 0.000 claims description 14
- 150000002367 halogens Chemical class 0.000 claims description 14
- 229910052739 hydrogen Inorganic materials 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 229910052717 sulfur Chemical group 0.000 claims description 13
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 claims description 10
- 125000003118 aryl group Chemical group 0.000 claims description 10
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- 125000001424 substituent group Chemical group 0.000 claims description 10
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- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 7
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- CLZISMQKJZCZDN-UHFFFAOYSA-N [benzotriazol-1-yloxy(dimethylamino)methylidene]-dimethylazanium Chemical compound C1=CC=C2N(OC(N(C)C)=[N+](C)C)N=NC2=C1 CLZISMQKJZCZDN-UHFFFAOYSA-N 0.000 claims description 3
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- 125000000623 heterocyclic group Chemical group 0.000 claims description 3
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- BEOOHQFXGBMRKU-UHFFFAOYSA-N sodium cyanoborohydride Chemical compound [Na+].[B-]C#N BEOOHQFXGBMRKU-UHFFFAOYSA-N 0.000 claims description 3
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- 229940081974 saccharin Drugs 0.000 description 1
- 239000000901 saccharin and its Na,K and Ca salt Substances 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229940045902 sodium stearyl fumarate Drugs 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 150000005846 sugar alcohols Chemical class 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 239000000829 suppository Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229960002180 tetracycline Drugs 0.000 description 1
- 229930101283 tetracycline Natural products 0.000 description 1
- 229940040944 tetracyclines Drugs 0.000 description 1
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- BRNULMACUQOKMR-UHFFFAOYSA-N thiomorpholine Chemical compound C1CSCCN1 BRNULMACUQOKMR-UHFFFAOYSA-N 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 230000036269 ulceration Effects 0.000 description 1
- 235000019871 vegetable fat Nutrition 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000002132 β-lactam antibiotic Substances 0.000 description 1
- 229940124586 β-lactam antibiotics Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/4353—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
- A61K31/437—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/04—Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- Animal Behavior & Ethology (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
本発明は、外因的または内因的に刺激された胃酸分泌を阻害し、従って胃腸炎症性疾患の予防および処置に使用できる式(I)のイミダゾピリジン誘導体に関する。The present invention relates to imidazopyridine derivatives of formula (I) which inhibit exogenously or endogenously stimulated gastric acid secretion and can therefore be used for the prevention and treatment of gastrointestinal inflammatory diseases.
Description
【技術分野】
【0001】
本発明は、外因的または内因的に刺激された胃酸分泌を阻害し、従って胃腸炎症性疾患の予防および処置に使用できる新規化合物およびそれらの製薬上許容される塩に関する。さらなる態様において、本発明は、治療に使用するための本発明の化合物;このような新規化合物の製造方法;活性成分として少なくとも1種の本発明の化合物またはその製薬上許容される塩を含有する医薬組成物;および上記の医学的使用のための医薬の製造における活性化合物の使用に関する。
【背景技術】
【0002】
消化性潰瘍性疾患の処置に有用な置換イミダゾ[1,2−a]ピリジンは、当技術において、例えばEP−B−0033094およびUS4,450,164(Schering Corporation);EP−B−0204285およびUS4,725,601(Fujisawa Pharmaceutical Co.);WO99/55706およびWO99/55705(AstraZeneca)およびJ.J.Kaminskiらによる刊行物、the Journal of Medical Chemistry(第28巻,876−892,1985;第30巻,2031−2046,1987;第30巻,2047−2051,1987;第32巻,1686−1700,1989;および第34巻,533−541,1991)から公知である。
胃酸ポンプ(H+,K+−ATPアーゼ)の薬理学に関する概説については、Sachsら(1995)Annu.Rev.Pharmacol.Toxicol.35:277−305を参照されたい。
【発明の開示】
【発明が解決しようとする課題】
【0003】
本発明の課題は、上記のような医学的使用において有利な特性および効力を示す新規なイミダゾピリジン化合物を提供することである。
【課題を解決するための手段】
【0004】
本発明者らは、有利な特性および効力を示す消化性潰瘍の処置に有用な追加の置換イミダゾ[1,2−a]ピリジンを見出した。
さらに本発明者らは、驚くべきことに、式Iの化合物が胃腸H+,K+−ATPアーゼの阻害剤として、そのために胃酸分泌の阻害剤として特に有効であることを見出した。
【0005】
従って、一つの態様において、本発明は、一般式Iの化合物
【化1】
またはその製薬上許容される塩に関し、ここで式中、Hetは、オルト位でR3およびR4基で置換された、少なくとも1個の窒素、酸素または硫黄原子を有する4員、5員または6員の芳香族または脂肪族ヘテロ環式基であり;
R1は、
(a)H、
(b)CH3または
(c)CH2OHであり;
R2は、
(a)CH3または
(b)CH2CH3であり;
R3およびR4は独立して、
(a)H、
(b)C1−C6アルキル、
(c)ヒドロキシル化C1−C6アルキルまたは
(d)ハロゲンの群から選択され;
R5およびR6は、式Iの化合物に≦600の分子量を与えるC、H、N、O、S、Se、Pおよびハロゲン原子を含む独立して選択される置換基であり;
R5およびR6は、それらが結合している窒素原子と一緒になって、場合により1個またはそれ以上のさらなるヘテロ原子を有する飽和または不飽和環を形成し;そして
Xは、
(a)NHまたは
(b)O
である。
【0006】
本明細書で用いられるように、「C1−C6アルキル」という用語は、1〜6個の炭素原子を有する直鎖状または分枝鎖状のアルキル基を示す。該C1−C6アルキルの例は、メチル、エチル、n−プロピル、イソプロピル、n−ブチル、イソブチル、sec−ブチル、t−ブチル、ならびに直鎖状または分枝鎖状のペンチルおよびヘキシルを包含するが、これらに限定されるものではない。
【0007】
「ハロゲン」という用語は、フルオロ、クロロ、ブロモおよびヨードを包含する。
「少なくとも1個の窒素、酸素または硫黄原子を有する4員、5員または6員の芳香族または脂肪族ヘテロ環式基」という用語は、置換または非置換のアゼチジン、フラン、チオフェン、ピロール、ピロリン、ピロリジン、ジオキソラン、オキサチオラン、オキサゾラン、オキサゾール、チアゾール、イミダゾール、イミダゾリン、イミダゾリジン、ピラゾール、ピラゾリン、ピラゾリジン、イソキサゾール、イソチアゾール、オキサジアゾール、フラザン、トリアゾール、チアジアゾール、ピラン、ピリジン、ピペリジン、ジオキサン、モルホリン、ジチアン、オキサチアン、チオモルホリン、ピリダジン、ピリミジン、ピラジン、ピペラジン、トリアジン、チアジアジン、ジチアジン基を包含するが、これらに限定されるものではなく、そして上記の基の全ての異性体を包含するものと理解すべきである。「アゼチジニル」という用語は、例えば2−および3−異性体を包含するものと理解すべきであり、そして「ピリジル」および「ピペリジニル」という用語は、例えば2−、3−および4−異性体を包含するものと理解すべきである。
【0008】
純粋なエナンチオマー、ラセミ混合物および2つのエナンチオマーの等しくない混合物は、本発明の範囲内にある。可能な全てのジアステレオマー形態(純粋なエナンチオマー、ラセミ混合物および2つのエナンチオマーの等しくない混合物)は、本発明の範囲内にある。同様に本発明に包含されるものは、式Iの化合物の生物学的機能を有する式Iの化合物の誘導体である。
製造条件に応じて、式Iの最終生成物は中性または塩の形態の何れかで得られる。これらの最終生成物の遊離塩基および塩の両者は、本発明の範囲内にある。
新規化合物の酸付加塩は、本来公知の方法で、アルカリのような塩基剤を用いるか、またはイオン交換によって遊離塩基に変換することができる。得られた遊離塩基は、有機酸または無機酸との塩を形成することもできる。
【0009】
酸付加塩の製造において、好ましくは、治療上許容される塩を好適に形成するような酸が用いられる。このような酸の例は、ハロゲン化水素酸、例えば塩酸、硫酸、リン酸、硝酸、脂肪族、脂環族、芳香族またはヘテロ環式のカルボン酸またはスルホン酸、例えばギ酸、酢酸、プロピオン酸、コハク酸、グリコール酸、乳酸、リンゴ酸、酒石酸、クエン酸、アスコルビン酸、マレイン酸、ヒドロキシマレイン酸、ピルビン酸、p−ヒドロキシ安息香酸、エンボン酸、メタンスルホン酸、エタンスルホン酸、ヒドロキシエタンスルホン酸、ハロゲンベンゼンスルホン酸、トルエンスルホン酸またはナフタレンスルホン酸である。
【0010】
本発明に係る好ましい化合物は、Hetが、
【化2】
であり;
R1が、
(a)H、
(b)CH3または
(c)CH2OHであり;
R2が、
(a)CH3または
(b)CH2CH3であり;
R3およびR4が独立して、
(a)H、
(b)C1−C6アルキル、
(c)ヒドロキシル化C1−C6アルキルまたは
(d)ハロゲンであり;
【0011】
R5およびR6が、式Iの化合物に≦600の分子量を与えるC、H、N、O、S、Se、Pおよびハロゲン原子を含む独立して選択される置換基であり;
R5およびR6が、それらが結合している窒素原子と一緒になって、場合により1個またはそれ以上のさらなるヘテロ原子を有する飽和または不飽和環を形成し;
Xが、
(a)NHまたは
(b)Oであり;そして
Yが、S、SO、SO2、O、NH、C=NまたはN=Cである、式Iの化合物またはその製薬上許容される塩である。
【0012】
本発明に係るより好ましい化合物は、Hetが、
【化3】
であり;
R1が、CH3またはCH2OHであり;
R2が、CH3またはCH2CH3であり;
R3およびR4が独立して、H、C1−C6アルキル、ヒドロキシル化C1−C6アルキルおよびハロゲンの群から選択され;
R5およびR6が独立して、
(a)H、
(b)C1−C6アルキル、
(c)モノもしくはジヒドロキシル化C1−C6アルキル、
(d)C1−C6アルコキシ置換C1−C6アルキル、
(e)C2−C6アルケニル、
(f)C2−C6アルキニル、
(g)ハロゲン化C1−C6アルキル、
(h)C3−C8シクロアルキル、
(i)シクロアルキル置換C1−C6アルキル、
(j)アリール(該アリールは、場合によりハロゲン、C1−C6アルキル、C1−C6アルコキシ、CF3、OH、ニトロ、アミノ、C1−C6アルキル−NH−、(C1−C6アルキル)2−N−またはCNから選択される1個またはそれ以上の置換基で置換されたフェニル、ピリジル、チエニルまたはフラニルである)、
(k)アリール置換C1−C6アルキル(該アリールは、場合によりハロゲン、C1−C6アルキル、C1−C6アルコキシ、CF3、OH、ニトロ、アミノ、C1−C6アルキル−NH−、(C1−C6アルキル)2−N−またはCNから選択される1個またはそれ以上の置換基で置換されたフェニル、ピリジル、チエニルまたはフラニルである)、
(l)R8−アルキル(R8は、NH2C=O−、C1−C6アルキル−NHC=O−、(C1−C6アルキル)2NC=O−、C1−C6アルキル−OOC−、NH2SO2−、C1−C6アルキル−SO2NH−、ArSO2NH−、シアノ、C1−C6アルキル−CO−NH−、C1−C6アルキル−OOCNH−、C1−C6アルキル−O−、C1−C6アルキル−SO−、C1−C6アルキル−S−、C1−C6アルキル−SO2−、C1−C6アルキル−C=O−、NH2−、C1−C6アルキル−NH−、(C1−C6アルキル)2N−、ArCONH−、ArNHSO2−、(Ar)2−N−SO2−、C1−C6アルキル−NHSO2−、ArS−、ArSO−、ArSO2−、ArC=O−、NH2CONH−C1−C6アルキル−NHCONH−、(C1−C6アルキル)2−NCONH−、ArNHCONH−、(C1−C6)2−N−SO2−、Ar−O−、Ar−NH−、Ar(C1−C6)N−または(C1−C6)2NSO2−であり;ここで、Arは、場合によりハロゲン、C1−C6アルキル、C1−C6アルコキシ、CF3、OH、CN、ニトロ、アミノ、C1−C6アルキル−NH−または(C1−C6アルキル)2N−から選択される1個またはそれ以上の置換基で置換されたフェニル、ピリジル、チエニルまたはフラニルである)であり;
【0013】
R5およびR6が、それらが結合している窒素原子と一緒になって、場合により1個またはそれ以上のさらなるヘテロ原子を有する飽和または不飽和環を形成し;
Xが、
(a)NHまたは
(b)Oであり;そして
Yが、S、SO、SO2、O、NH、C=NまたはN=Cである、式Iの化合物またはその製薬上許容される塩である。
【0014】
本発明に係る特に好ましい化合物は、Hetが、
【化4】
であり;
R1が、CH3またはCH2OHであり;
R2が、CH3またはCH2CH3であり;
R3およびR4が独立して、水素またはC1−C6アルキルであり;
R5およびR6が独立して、
(a)H、
(b)C1−C6アルキル、
(c)モノもしくはジヒドロキシル化C1−C6アルキルまたは
(d)C1−C6アルコキシ置換C1−C6アルキルであり;
Xが、NHであり;そして
Yが、S、O、NH、C=NまたはN=Cである、式Iの化合物またはその製薬上許容される塩である。
【0015】
本発明の別の実施形態は、Hetが、
【化5】
であり;
R1が、H、CH3またはCH2OHであり;
R2が、CH3またはCH2CH3であり;
R3が、C1−C6アルキルであり;
R4が、C1−C6アルキルであり;
R5およびR6が、それぞれ水素、C1−C6アルキル、モノもしくはジヒドロキシル化C1−C6アルキル、C1−C6アルコキシ−(C1−C6アルキル)、ヒドロキシル化C1−C6アルコキシ−(C1−C6アルキル)から独立して選択されるか、またはR5およびR6が、それらが結合している窒素原子と一緒になって、モルホリンまたはヒドロキシル化ピロリジンを形成してもよく;
Xが、NHであり;そして
Yが、SまたはOである、式Iの化合物である。
【0016】
本発明のさらに別の実施形態は、Hetが、
【化6】
であり;
R1が、CH3であり;
R2が、CH3であり;
R3が、C1−C6アルキルであり;
R4が、C1−C6アルキルであり;
R5およびR6が、それぞれ水素、C1−C6アルキル、モノもしくはジヒドロキシル化C1−C6アルキル、C1−C6アルコキシ−(C1−C6アルキル)、ヒドロキシル化C1−C6アルコキシ−(C1−C6アルキル)から独立して選択されるか、またはR5およびR6が、それらが結合している窒素原子と一緒になって、モルホリンまたはヒドロキシル化ピロリジンを形成してもよく;
Xが、NHであり;そして
Yが、SまたはOである、式Iの化合物である。
【0017】
本発明の最も好ましい化合物は、2,3−ジメチル−8−[(2,4−ジメチル−チオフェン−3−イルメチル)−アミノ]−イミダゾ[1,2−a]ピリジン−6−カルボキサミドまたはその製薬上許容される塩である。
【0018】
製造
本発明はまた、一般式Iを有する化合物の下記の製造方法を提供する。
方法A
式IIの化合物
【化7】
(式中、R1、R2、R5およびR6は式Iについて定義したとおりである)を、ルイス酸、例えば塩化亜鉛の存在下に、一般式IIIの化合物
【化8】
(式中、Hetは式Iについて定義したとおりである)と反応させて、一般式IVの化合物
【化9】
(式中、R1、R2、R5、R6およびHetは式Iについて定義したとおりである)を与えることができ、次いで一般式IVの化合物を、例えば水素化ホウ素ナトリウムまたはシアノ水素化ホウ素ナトリウムを用いて還元して、一般式Iの化合物(式中、XはNHである)を与える。この反応は、標準的条件下で、不活性溶剤、例えばメタノールまたはエタノール中で行うことができる。
【0019】
方法B
式Vの化合物
【化10】
(式中、R1、R2、R5およびR6は式Iについて定義したとおりであり、そしてAはNH2またはOHである)を、式VIの化合物
【化11】
(式中、Hetは式Iについて定義したとおりであり、そしてZはハライド、トシルまたはメシルのような脱離基である)と反応させて、式Iの化合物を与えることができる。この反応は、不活性溶剤、例えばアセトン、アセトニトリル、ジメトキシエタン、メタノール、エタノールまたはジメチルホルムアミド中で、塩基を用いるか用いることなく行うことが好都合である。塩基は、例えば、水酸化ナトリウムおよび水酸化カリウムのようなアルカリ金属水酸化物、炭酸カリウムおよび炭酸ナトリウムのようなアルカリ金属炭酸塩;またはトリエチルアミンのような有機アミンである。
【0020】
方法C
一般式Iを有する化合物の製造方法は、下記の段階を含む:
a)式VIIの化合物
【化12】
(式中、R1、R2、HetおよびXは式Iで定義したとおりである)を、標準的条件下で加水分解して、相当する式VIIIのカルボン酸
【化13】
を与えることができ、
b)式VIIIの化合物(式中、R1、R2、HetおよびXは式Iで定義したとおりである)を、o−ベンゾトリアゾール−1−イル−N,N,N’,N’−テトラメチルウロニウムテトラフルオロボレート(TBTU)のようなカップリング試薬の存在下に、式IXのアミノ化合物
【化14】
(式中、R5およびR6は式Iについて定義したとおりである)と反応させて、相当する式Iのアミド化合物を与えることができる。この反応は、不活性溶剤中で標準的条件下で行うことができる。
【0021】
医学的使用
もう一つの態様において、本発明は、治療に使用するための、特に胃腸炎症性疾患に対して使用するための式Iの化合物に関する。本発明はまた、胃酸分泌を阻害するため、または胃腸炎症性疾患を処置するための医薬の製造における式Iの化合物の使用を提供する。
このように、本発明に係る化合物は、ヒトを含む哺乳類の胃腸炎症性疾患および胃酸関連疾患、例えば胃炎、胃潰瘍、十二指腸潰瘍および逆流性食道炎およびゾリンジャー・エリソン症候群の予防および処置のために使用することができる。さらに、化合物は、胃の抗分泌効果が望ましい他の胃腸異常症を処置するため、例えば、特にガストリノーマを有する患者および急性の胃腸上方出血を有する患者に使用することができる。化合物は、集中ケアの状態にある患者に、そして術前および術後に、酸吸引およびストレス性潰瘍形成を予防するために使用することもできる。
活性物質の典型的な日量は広い範囲内で変動し、そして例えば各患者の個々の必要条件、投与経路および疾患のような種々のファクターに依存するであろう。一般的に、経口および非経口用量は、1日当たり5〜1000mgの活性物質の範囲であろう。
【0022】
医薬製剤
さらにもう一つの態様において、本発明はまた、活性成分として少なくとも1種の本発明の化合物またはその治療上許容される塩を含有する医薬組成物に関する。
本発明の化合物は、他の活性成分、例えばアモキシシリンのような抗生物質と一緒にした処方物に使用することもできる。
臨床使用のために、本発明の化合物は、経口的、直腸内、非経口的にまたは他の方式で投与するための医薬製剤に処方される。医薬製剤は、本発明の化合物を1種またはそれ以上の製薬上許容される成分と組み合わせて含有する。担体は、固体、半固体もしくは液体の希釈剤またはカプセルの形態にあってよい。これらの医薬製剤は本発明のもう一つの目的である。通常、活性化合物の量は、非経口的使用のための製剤では、製剤の0.1〜95重量%、好ましくは0.1〜20重量%であり、そして経口投与のための製剤では、0.1〜50重量%が好ましい。
【0023】
本発明の化合物を経口投与のための用量単位の形態で含有する医薬製剤の製造において、選択された化合物を、固体粉末状成分、例えば乳糖、ショ糖、ソルビトール、マンニトール、澱粉、アミロペクチン、セルロース誘導体、ゼラチンまたは別の好適な成分、ならびに崩壊剤および滑剤、例えばステアリン酸マグネシウム、ステアリン酸カルシウム、ステアリルフマル酸ナトリウムおよびポリエチレングリコールワックスと混合することができる。次いでこの混合物を顆粒に加工するか、または錠剤に圧縮する。
【0024】
軟質ゼラチンカプセルは、本発明の活性化合物(1種以上)、植物油、脂肪または軟質ゼラチンカプセルに適する他のビヒクルの混合物を含有するカプセルを用いて製造することができる。硬質ゼラチンカプセルは、活性化合物の顆粒を含有することができる。硬質ゼラチンカプセルは、活性化合物を固体粉末状成分、例えば乳糖、ショ糖、ソルビトール、マンニトール、ジャガイモ澱粉、トウモロコシ澱粉、アミロペクチン、セルロース誘導体またはゼラチンと組み合わせて含有することもできる。
【0025】
直腸内投与のための用量単位は、(i)中性脂肪基剤と混合した活性物質を含有する坐剤の形態;(ii)活性物質を植物油、パラフィン油またはゼラチン直腸内カプセルに適する他のビヒクルとの混合物として含有するゼラチン直腸内カプセルの形態;(iii)レディーメードのマイクロ浣腸の形態;または(iv)投与直前に好適な溶剤で再構築される乾燥マイクロ浣腸処方物の形態で製造することができる。
【0026】
経口投与のための液体製剤は、シロップまたは懸濁液、例えば0.1〜20重量%の活性成分を含有し、そして残余が糖または糖アルコール、およびエタノール、水、グリセロール、プロピレングリコールおよびポリエチレングリコールの混合物からなる溶液または懸濁液の形態で製造することができる。所望により、このような液体製剤は、着色剤、矯味矯臭剤、サッカリンおよびカルボキシメチルセルロースまたは他の増粘剤を含有することができる。経口投与のための液体製剤は、使用前に好適な溶剤で再調製される乾燥粉末の形態で製造することもできる。
【0027】
非経口投与のための溶液は、製薬上許容される溶剤中の本発明の化合物の溶液として、好ましくは0.1〜10重量%の濃度で製造することができる。これらの溶液は、安定化成分および/または緩衝成分を含有することもでき、そしてアンプルまたはバイアルの形態の単位用量に小分けされる。経口投与のための溶液は、使用直前に好適な溶剤で再調製される乾燥製剤として製造することもできる。
【0028】
本発明の化合物は、他の活性成分と一緒に、例えば、ヒト胃粘膜のヘリコバクター・ピロリ(Helicobacter pylori)による感染に関連する状態を処置または予防するための処方物に使用することもできる。このような他の活性成分は、抗菌剤、特に下記のものであってよい:
・β−ラクタム抗生物質、例えばアモキシシリン、アンピシリン、セファロチン、セファクロルまたはセフィキシム;
・マクロライド類、例えばエリスロマイシンまたはクラリスロマイシン;
・テトラサイクリン類、例えばテトラサイクリンまたはドキシサイクリン;
・アミノグリコシド類、例えばゲンタマイシン、カナマイシンまたはアミカシン;
・キノロン類、例えばノルフロキサシン、シプロフロキサシンまたはエノキサシン;
・その他、例えばメトロニダゾール、ニトロフラントインまたはクロラムフェニコール;または
・ビスマス塩、例えば次クエン酸ビスマス、次サリチル酸ビスマス、次炭酸ビスマス、次硝酸ビスマスまたは次没食子酸ビスマスを含有する製剤。
【0029】
本発明化合物は、他の活性成分と一緒に、例えば医薬誘導胃潰瘍に関連する状態を処置または予防するための処方物に使用することもできる。このような他の活性成分は、NSAID、NO−NSAID、COX−2阻害剤またはビスホスホネートであってよい。
【0030】
中間体
本発明のもう一つの態様は、本発明に係る化合物の合成に有用である新規な中間体化合物である。
このように、本発明は、式(IV)の化合物
【化15】
(式中、R1、R2、R5、R6およびHetは上記の式Iについて定義したとおりである)を包含する。
【実施例】
【0031】
1.本発明の化合物の製造
実施例1 . 1
8−{[(2,4−ジメチルチエン−3−イル)メチル]アミノ}−2,3−ジメチルイミダゾ[1,2−a]ピリジン−6−カルボキサミドの合成
【化16】
【0032】
8−アミノ−2,3−ジメチルイミダゾ[1,2−a]ピリジン−6−カルボキサミドのメシレート(0.36g、1mmol)、2,4−ジメチルチオフェン−3−カルボアルデヒド(0.17g、1.2mmol)、塩化亜鉛(0.15g、1.1mmol)およびシアノ水素化ホウ素ナトリウム(0.14g、2.1mmol)をメタノール(20ml)に加え、この混合物を窒素雰囲気中で20時間還流した。室温に冷却したのち、トリエチルアミン(0.5ml)を反応混合物に加え、溶剤を減圧蒸発させた。残留物をシリカゲル上のカラムクロマトグラフィーにより溶出剤として塩化メチレン:メタノール(10:1)を用いて精製して、6mg(2%)の表題の化合物を得た。
1H−NMR(300MHz,DMSO−d6)2.15(s,3H),2.25(s,3H),2.35(s,3H),2.45(s,3H),4.3(d,2H),5.4(t,1H),6.6(s,1H),6.9(s,1H),7.3(bs,1H),7.95(s,1H),8.1(s,1H)
【0033】
実施例1 . 2〜1 . 23
実施例1.2〜1.23を、スキーム1(下記参照)に示す手順に従って製造する。
【0034】
【化17】
【0035】
これらの反応における出発化合物Aとして、下記の化合物を用いた。
【化18】
【0036】
反応化合物Dとして、下記の化合物を用いた。
【化19】
【0037】
すなわち、下記の化合物Fを製造する。
【表1】
【0038】
一般的手順:
A(1当量)および水酸化ナトリウム(5当量)をエタノール(95%)に溶解し、この混合物を24時間還流する。溶剤を減圧蒸発させ、残留物に水を加える。酢酸を加えてpHを調節し、沈殿した固体を濾過して単離し、水洗し、乾燥して、表題の目的化合物(B)を得る。
B(1当量)、C(1当量)、D(1当量)およびE(2当量)をジメチルホルムアミドに加え、この混合物を室温で24時間撹拌する。溶剤を減圧蒸発させ、残留物をシリカゲルおよび溶出剤として塩化メチレン/メタノールを用いてクロマトグラフィーにより精製して、目的化合物Fを得る。
【0039】
【表2】
【0040】
生物学的試験
1.インビトロ実験
単離したウサギ胃腺における酸分泌の阻害
単離したウサギ胃腺におけるインビトロでの酸分泌に対する阻害効果を、Berglindhら(1976)Acta Physiol.Scand.97,401−414に記載されたようにして測定した。
【0041】
H+,K+−ATPアーゼ活性の決定
膜小胞(2.5〜5μg)を、2mM MgCl2、10mM KClおよび2mM ATPを含有する18mM Pipes/Tris緩衝液pH7.4中で、+37℃で15分間インキュベートした。ATPアーゼ活性を、LeBelら(1978)Anal.Biochem.85,86−89に記載されたようにして、ATPからの無機リン酸塩の放出として評価した。
【0042】
2.インビボ実験
雌ラットにおける酸分泌に対する阻害効果
Sprague−Dawly系統の雌ラットを用いる。胃酸分泌物を収集し、そして試験物質を投与するために、動物の胃(管腔)および十二指腸の上部にそれぞれカニューレ挿入フィステルを備え付ける。外科後14日の回復期間を試験の開始前に与える。
分泌試験の前に、水以外の食物を20時間、動物に与えない。胃を胃カニューレにより水道水(+37℃)で繰り返し洗浄し、そして6mlのリンゲル−ブドウ糖液を皮下投与する。ペンタガストリンおよびカルバコール(それぞれ20および110nmol/kg・h)を2.5〜4時間注入すること(1.2ml/h、皮下)により、酸分泌を刺激し、この時間中に胃分泌物を30分の分画で集める。刺激(静脈内および十二指腸内投与、1ml/kg)の開始後60分、または刺激(経口投与、5mg/kg、胃カニューレを閉じる)の開始前2時間に、試験物質またはビヒクルを与える。作用の持続性を研究するために、投与と刺激との時間間隔を増やすことができる。胃液サンプルを0.1M NaOHでpH7.0まで滴定し、酸排出量を滴定標準液体積と濃度との積として計算する。
他の計算は、4〜6匹のラットからの群平均応答に基づく。刺激中に投与した場合には;試験物質またはビヒクルを投与した後の期間中の酸排出量は、投与前30分間の期間中の酸排出量を1.0として、分数応答として表される。パーセント阻害は、試験化合物およびビヒクルによって導き出される分数応答から計算する。刺激前に投与した場合には;パーセント阻害は、試験化合物およびビヒクルの後に記録された酸排出量から直接計算する。
【0043】
ラットにおける生体利用率
Sprague−Dawly系統の成ラットを用いる。実験の1〜3日前に、全てのラットを麻酔下に左頚動脈のカニューレ挿入によって準備する。静脈内実験に用いるラットは、頚静脈にもカニューレ挿入する(Popovic(1960) J.Appl.Physiol.15,727−728)。カニューレは首のうなじで外在化する。
血液サンプル(0.1〜0.4g)を所定の投与後5.5時間までの間隔で頚動脈から繰り返し採血する。試験化合物の分析までサンプルを凍結する。
生体利用率は、それぞれ(i)十二指腸内(i.d.)または経口(p.o.)投与、および(ii)静脈内(i.v.)投与による、ラットまたはイヌからの血液/血漿濃度曲線下の面積(AUC)の商を計算することによって評価する。血液濃度対時間曲線下の面積、AUCをlog/線形の台形公式によって決定し、そして最後に決定した血液濃度を終末期における除去率定数で除することによって無限大に外挿する。十二指腸内または経口投与による全身的生体利用率(%F)を、
F(%)=(AUC(p.o.またはi.d.)/AUC(i.v.))×100
として計算する。
【0044】
有意識イヌにおける胃酸分泌の阻害および生体利用率
何れかの性のラブラドール・レトリバーまたはハリヤー犬を用いる。動物に、試験化合物またはビヒクルを投与するために十二指腸フィステルを、そして胃分泌物を収集するためにカニューレ挿入胃フィステルまたはハイデンハイン小胃を備え付ける。
分泌試験の前に、動物を約18時間絶食させるが、水を自由に与える。二塩酸ヒスタミン(12ml/h)を個々の最大分泌応答の約80%を生じさせる用量で、6.5時間まで注入して胃酸分泌を刺激し、そして胃液を連続30分の分画で収集する。ヒスタミン注入を開始した1時間または1.5時間後に、試験物質またはビヒクルを0.5ml/kg体重の体積で経口、i.d.またはi.v.投与する。経口投与の場合には、試験化合物をハイデンハイン小胃イヌの酸分泌性主要胃に投与することに注意すべきである。
【0045】
胃液サンプルの酸性度をpH7.0までの滴定によって決定し、そして酸排出量を計算する。試験物質またはビヒクルの投与後の収集期間中の酸排出量は、投与前の分画中の酸排出量を1.0として、分数応答として表される。パーセント阻害は、試験化合物およびビヒクルによって導き出される分数応答から計算する。
血漿中の試験化合物濃度を分析するための血液サンプルを、投与後4時間までの間隔で採取する。血漿を分離し、そして収集後30分以内に凍結し、そして後で分析する。ラットモデルにおける経口またはi.d.投与後の全身的生体利用率(F%)を、上記のように計算する。【Technical field】
[0001]
The present invention relates to novel compounds and their pharmaceutically acceptable salts that inhibit exogenous or endogenously stimulated gastric acid secretion and can therefore be used for the prevention and treatment of gastrointestinal inflammatory diseases. In a further aspect, the present invention comprises a compound of the present invention for use in therapy; a process for preparing such a novel compound; as an active ingredient at least one compound of the present invention or a pharmaceutically acceptable salt thereof. Pharmaceutical compositions; and the use of active compounds in the manufacture of a medicament for medical use as described above.
[Background]
[0002]
Substituted imidazo [1,2-a] pyridines useful for the treatment of peptic ulcer disease are known in the art, for example, EP-B-0033094 and US 4,450,164 (Schering Corporation); EP-B-0204285 and US4. , 725, 601 (Fujisawa Pharmaceutical Co.); publications by WO99 / 55706 and WO99 / 55705 (AstraZeneca) and J.J. Kaminski et al., The Journal of Medical Chemistry, Vol. 6, No. 28, 1985; 30, 2031-2046, 1987; 30, 3047-2051, 1987; 32, 1686-1700, 1989; and 34, 533-541, 1991. It is known from it.
Gastric acid pump (H+, K+For a review on the pharmacology of -ATPase) see Sachs et al. (1995) Annu. Rev. Pharmacol. Toxicol. 35: 277-305.
DISCLOSURE OF THE INVENTION
[Problems to be solved by the invention]
[0003]
The object of the present invention is to provide novel imidazopyridine compounds which exhibit advantageous properties and efficacy in medical use as described above.
[Means for Solving the Problems]
[0004]
The inventors have discovered additional substituted imidazo [1,2-a] pyridines useful for the treatment of peptic ulcers that exhibit advantageous properties and efficacy.
Furthermore, we have surprisingly found that the compound of formula I is a gastrointestinal H+, K+-It has been found to be particularly effective as an inhibitor of ATPase and therefore as an inhibitor of gastric acid secretion.
[0005]
Accordingly, in one embodiment, the present invention provides a compound of general formula I
[Chemical 1]
Or a pharmaceutically acceptable salt thereof, wherein Het is R in the ortho position.ThreeAnd RFourA 4-, 5- or 6-membered aromatic or aliphatic heterocyclic group having at least one nitrogen, oxygen or sulfur atom substituted with a group;
R1Is
(A) H,
(B) CHThreeOr
(C) CH2OH;
R2Is
(A) CHThreeOr
(B) CH2CHThreeIs;
RThreeAnd RFourIs independent
(A) H,
(B) C1-C6Alkyl,
(C) Hydroxylated C1-C6Alkyl or
(D) selected from the group of halogens;
RFiveAnd R6Are independently selected substituents including C, H, N, O, S, Se, P and halogen atoms that give a compound of formula I a molecular weight of ≦ 600;
RFiveAnd R6Together with the nitrogen atom to which they are attached form a saturated or unsaturated ring optionally having one or more additional heteroatoms; and
X is
(A) NH or
(B) O
It is.
[0006]
As used herein, “C1-C6The term “alkyl” denotes a linear or branched alkyl group having 1 to 6 carbon atoms. The C1-C6Examples of alkyl include, but are not limited to, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, t-butyl, and linear or branched pentyl and hexyl. Is not to be done.
[0007]
The term “halogen” includes fluoro, chloro, bromo and iodo.
The term “a 4-, 5- or 6-membered aromatic or aliphatic heterocyclic group having at least one nitrogen, oxygen or sulfur atom” refers to a substituted or unsubstituted azetidine, furan, thiophene, pyrrole, pyrroline , Pyrrolidine, dioxolane, oxathiolane, oxazolane, oxazole, thiazole, imidazole, imidazoline, imidazolidine, pyrazole, pyrazoline, pyrazolidine, isoxazole, isothiazole, oxadiazole, furazane, triazole, thiadiazole, pyran, pyridine, piperidine, dioxane, morpholine , Dithiane, oxathiane, thiomorpholine, pyridazine, pyrimidine, pyrazine, piperazine, triazine, thiadiazine, dithiazine groups, including but not limited to It should be understood to include all isomers of the above groups with. The term “azetidinyl” should be understood to include, for example, the 2- and 3-isomers, and the terms “pyridyl” and “piperidinyl” include, for example, the 2-, 3- and 4-isomers. It should be understood as including.
[0008]
Pure enantiomers, racemic mixtures and unequal mixtures of two enantiomers are within the scope of the invention. All possible diastereomeric forms (pure enantiomers, racemic mixtures and unequal mixtures of two enantiomers) are within the scope of the invention. Also encompassed by the present invention are derivatives of compounds of formula I that have the biological function of compounds of formula I.
Depending on the production conditions, the final product of formula I is obtained either in neutral or salt form. Both the free base and salt of these end products are within the scope of the present invention.
The acid addition salt of the novel compound can be converted into the free base by a known method using a base agent such as an alkali or by ion exchange. The resulting free base can also form salts with organic or inorganic acids.
[0009]
In the preparation of acid addition salts, preferably acids are used that suitably form therapeutically acceptable salts. Examples of such acids are hydrohalic acids such as hydrochloric acid, sulfuric acid, phosphoric acid, nitric acid, aliphatic, alicyclic, aromatic or heterocyclic carboxylic acids or sulfonic acids such as formic acid, acetic acid, propionic acid. , Succinic acid, glycolic acid, lactic acid, malic acid, tartaric acid, citric acid, ascorbic acid, maleic acid, hydroxymaleic acid, pyruvic acid, p-hydroxybenzoic acid, embonic acid, methanesulfonic acid, ethanesulfonic acid, hydroxyethanesulfone Acid, halogen benzene sulfonic acid, toluene sulfonic acid or naphthalene sulfonic acid.
[0010]
Preferred compounds according to the invention are Het,
[Chemical 2]
Is;
R1But,
(A) H,
(B) CHThreeOr
(C) CH2OH;
R2But,
(A) CHThreeOr
(B) CH2CHThreeIs;
RThreeAnd RFourIs independent,
(A) H,
(B) C1-C6Alkyl,
(C) Hydroxylated C1-C6Alkyl or
(D) is halogen;
[0011]
RFiveAnd R6Are independently selected substituents including C, H, N, O, S, Se, P and halogen atoms that give the compound of formula I a molecular weight of ≦ 600;
RFiveAnd R6Together with the nitrogen atom to which they are attached, optionally forms a saturated or unsaturated ring having one or more additional heteroatoms;
X is
(A) NH or
(B) O; and
Y is S, SO, SO2, O, NH, C═N or N═C, a compound of Formula I or a pharmaceutically acceptable salt thereof.
[0012]
More preferred compounds according to the invention are Het,
[Chemical Formula 3]
Is;
R1But CHThreeOr CH2OH;
R2But CHThreeOr CH2CHThreeIs;
RThreeAnd RFourAre independently H, C1-C6Alkyl, hydroxylated C1-C6Selected from the group of alkyl and halogen;
RFiveAnd R6Is independent
(A) H,
(B) C1-C6Alkyl,
(C) Mono- or dihydroxylated C1-C6Alkyl,
(D) C1-C6Alkoxy substituted C1-C6Alkyl,
(E) C2-C6Alkenyl,
(F) C2-C6Alkynyl,
(G) Halogenated C1-C6Alkyl,
(H) CThree-C8Cycloalkyl,
(I) Cycloalkyl-substituted C1-C6Alkyl,
(J) aryl (wherein the aryl is optionally halogen, C1-C6Alkyl, C1-C6Alkoxy, CFThree, OH, nitro, amino, C1-C6Alkyl-NH-, (C1-C6Alkyl)2-Phenyl, pyridyl, thienyl or furanyl substituted with one or more substituents selected from -N- or CN),
(K) aryl-substituted C1-C6Alkyl (wherein the aryl is optionally halogen, C1-C6Alkyl, C1-C6Alkoxy, CFThree, OH, nitro, amino, C1-C6Alkyl-NH-, (C1-C6Alkyl)2-Phenyl, pyridyl, thienyl or furanyl substituted with one or more substituents selected from -N- or CN),
(L) R8-Alkyl (R8Is NH2C = O-, C1-C6Alkyl-NHC═O—, (C1-C6Alkyl)2NC = O-, C1-C6Alkyl-OOC-, NH2SO2-, C1-C6Alkyl-SO2NH-, ArSO2NH-, cyano, C1-C6Alkyl-CO-NH-, C1-C6Alkyl-OOCNH-, C1-C6Alkyl-O-, C1-C6Alkyl-SO-, C1-C6Alkyl-S-, C1-C6Alkyl-SO2-, C1-C6Alkyl-C═O—, NH2-, C1-C6Alkyl-NH-, (C1-C6Alkyl)2N-, ArCONH-, ArNHSO2-, (Ar)2-N-SO2-, C1-C6Alkyl-NHSO2-, ArS-, ArSO-, ArSO2-, ArC = O-, NH2CONH-C1-C6Alkyl-NHCONH-, (C1-C6Alkyl)2-NCONH-, ArNHCONH-, (C1-C6)2-N-SO2-, Ar-O-, Ar-NH-, Ar (C1-C6) N- or (C1-C6)2NSO2Where Ar is optionally halogen, C1-C6Alkyl, C1-C6Alkoxy, CFThree, OH, CN, nitro, amino, C1-C6Alkyl-NH- or (C1-C6Alkyl)2Phenyl, pyridyl, thienyl or furanyl substituted with one or more substituents selected from N-);
[0013]
RFiveAnd R6Together with the nitrogen atom to which they are attached, optionally forms a saturated or unsaturated ring having one or more additional heteroatoms;
X is
(A) NH or
(B) O; and
Y is S, SO, SO2, O, NH, C═N or N═C, a compound of Formula I or a pharmaceutically acceptable salt thereof.
[0014]
Particularly preferred compounds according to the invention are Het,
[Formula 4]
Is;
R1But CHThreeOr CH2OH;
R2But CHThreeOr CH2CHThreeIs;
RThreeAnd RFourAre independently hydrogen or C1-C6Is alkyl;
RFiveAnd R6Is independent
(A) H,
(B) C1-C6Alkyl,
(C) Mono- or dihydroxylated C1-C6Alkyl or
(D) C1-C6Alkoxy substituted C1-C6Is alkyl;
X is NH; and
A compound of Formula I or a pharmaceutically acceptable salt thereof, wherein Y is S, O, NH, C═N or N═C.
[0015]
Another embodiment of the present invention is Het,
[Chemical formula 5]
Is;
R1But H, CHThreeOr CH2OH;
R2But CHThreeOr CH2CHThreeIs;
RThreeBut C1-C6Is alkyl;
RFourBut C1-C6Is alkyl;
RFiveAnd R6Are hydrogen and C, respectively.1-C6Alkyl, mono or dihydroxylated C1-C6Alkyl, C1-C6Alkoxy- (C1-C6Alkyl), hydroxylated C1-C6Alkoxy- (C1-C6Alkyl)) or RFiveAnd R6May, together with the nitrogen atom to which they are attached, form morpholine or hydroxylated pyrrolidine;
X is NH; and
A compound of formula I wherein Y is S or O.
[0016]
Yet another embodiment of the present invention is that Het is
[Chemical 6]
Is;
R1But CHThreeIs;
R2But CHThreeIs;
RThreeBut C1-C6Is alkyl;
RFourBut C1-C6Is alkyl;
RFiveAnd R6Are hydrogen and C, respectively.1-C6Alkyl, mono or dihydroxylated C1-C6Alkyl, C1-C6Alkoxy- (C1-C6Alkyl), hydroxylated C1-C6Alkoxy- (C1-C6Alkyl)) or RFiveAnd R6May, together with the nitrogen atom to which they are attached, form morpholine or hydroxylated pyrrolidine;
X is NH; and
A compound of Formula I wherein Y is S or O.
[0017]
The most preferred compound of the present invention is 2,3-dimethyl-8-[(2,4-dimethyl-thiophen-3-ylmethyl) -amino] -imidazo [1,2-a] pyridine-6-carboxamide or a pharmaceutical thereof. This is an acceptable salt.
[0018]
Manufacturing
The present invention also provides the following process for preparing compounds having general formula I:
Method A
Compound of formula II
[Chemical 7]
(Wherein R1, R2, RFiveAnd R6Are as defined for formula I) in the presence of a Lewis acid, such as zinc chloride.
[Chemical 8]
(Wherein Het is as defined for formula I) to give a compound of general formula IV
[Chemical 9]
(Wherein R1, R2, RFive, R6And Het are as defined for formula I), then the compound of general formula IV is reduced using, for example, sodium borohydride or sodium cyanoborohydride to give a compound of general formula I ( In which X is NH). This reaction can be carried out under standard conditions in an inert solvent such as methanol or ethanol.
[0019]
Method B
Compound of formula V
Embedded image
(Wherein R1, R2, RFiveAnd R6Is as defined for formula I and A is NH2Or OH), a compound of formula VI
Embedded image
Reaction with (wherein Het is as defined for formula I and Z is a leaving group such as halide, tosyl or mesyl) can give compounds of formula I. This reaction is conveniently carried out in an inert solvent such as acetone, acetonitrile, dimethoxyethane, methanol, ethanol or dimethylformamide, with or without a base. Bases are, for example, alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, alkali metal carbonates such as potassium carbonate and sodium carbonate; or organic amines such as triethylamine.
[0020]
Method C
The process for the preparation of compounds having general formula I comprises the following steps:
a) Compound of formula VII
Embedded image
(Wherein R1, R2, Het and X are as defined in formula I) under standard conditions to give the corresponding carboxylic acid of formula VIII
Embedded image
Can give
b) a compound of formula VIII, wherein R1, R2, Het and X are as defined in Formula I), such as o-benzotriazol-1-yl-N, N, N ′, N′-tetramethyluronium tetrafluoroborate (TBTU) An amino compound of formula IX in the presence of a reagent
Embedded image
(Wherein RFiveAnd R6Can be reacted as in formula I to give the corresponding amide compound of formula I. This reaction can be performed under standard conditions in an inert solvent.
[0021]
Medical use
In another embodiment the invention relates to compounds of formula I for use in therapy, in particular for use against gastrointestinal inflammatory diseases. The present invention also provides the use of a compound of formula I in the manufacture of a medicament for inhibiting gastric acid secretion or treating gastrointestinal inflammatory diseases.
Thus, the compounds according to the invention are used for the prevention and treatment of gastrointestinal inflammatory diseases and acid-related diseases in mammals, including humans, such as gastritis, gastric ulcer, duodenal ulcer and reflux esophagitis and Zollinger-Ellison syndrome can do. In addition, the compounds can be used to treat other gastrointestinal abnormalities where gastric antisecretory effects are desirable, for example, in patients with gastrinoma and in patients with acute gastrointestinal upset bleeding. The compounds can also be used to prevent acid aspiration and stress ulceration in patients in intensive care and before and after surgery.
Typical daily doses of active substances vary within wide limits and will depend on various factors such as individual requirements, route of administration and disease of each patient. In general, oral and parenteral doses will range from 5 to 1000 mg of active substance per day.
[0022]
Pharmaceutical formulation
In yet another embodiment, the present invention also relates to a pharmaceutical composition comprising as an active ingredient at least one compound of the present invention or a therapeutically acceptable salt thereof.
The compounds of the present invention can also be used in formulations with other active ingredients, for example antibiotics such as amoxicillin.
For clinical use, the compounds of the invention are formulated into pharmaceutical formulations for administration orally, rectally, parenterally or otherwise. The pharmaceutical formulation contains a compound of the invention in combination with one or more pharmaceutically acceptable ingredients. The carrier may be in the form of a solid, semi-solid or liquid diluent or capsule. These pharmaceutical preparations are another object of the present invention. Usually the amount of active compound is from 0.1 to 95%, preferably from 0.1 to 20% by weight of the formulation for formulations for parenteral use and 0 for formulations for oral administration. 0.1 to 50% by weight is preferred.
[0023]
In the manufacture of a pharmaceutical formulation comprising a compound of the present invention in the form of a dosage unit for oral administration, the selected compound is converted into a solid powdered ingredient such as lactose, sucrose, sorbitol, mannitol, starch, amylopectin, cellulose derivatives. , Gelatin or another suitable ingredient, and disintegrants and lubricants such as magnesium stearate, calcium stearate, sodium stearyl fumarate and polyethylene glycol waxes. The mixture is then processed into granules or compressed into tablets.
[0024]
Soft gelatin capsules can be prepared using capsules containing a mixture of the active compound (s) of the present invention, vegetable oils, fats or other vehicles suitable for soft gelatin capsules. Hard gelatin capsules can contain granules of the active compound. Hard gelatin capsules may also contain the active compound in combination with a solid powdered ingredient such as lactose, sucrose, sorbitol, mannitol, potato starch, corn starch, amylopectin, cellulose derivatives or gelatin.
[0025]
The dosage unit for rectal administration is (i) in the form of a suppository containing the active substance mixed with a neutral fatty base; (ii) the active substance in vegetable oil, paraffin oil or other suitable for rectal capsules gelatin Manufactured in the form of a gelatin rectal capsule containing as a mixture with a vehicle; (iii) a ready-made microenema form; or (iv) a dry microenema formulation reconstituted with a suitable solvent just prior to administration be able to.
[0026]
Liquid preparations for oral administration contain syrups or suspensions, for example 0.1-20% by weight of active ingredient, with the remainder being sugar or sugar alcohol, and ethanol, water, glycerol, propylene glycol and polyethylene glycol In the form of a solution or suspension consisting of a mixture of If desired, such liquid preparations can contain coloring agents, flavoring agents, saccharin and carboxymethylcellulose or other thickening agents. Liquid dosage forms for oral administration can be prepared in the form of dry powders that are reconstituted with a suitable solvent prior to use.
[0027]
Solutions for parenteral administration can be prepared as solutions of the compounds of the present invention in pharmaceutically acceptable solvents, preferably at a concentration of 0.1 to 10% by weight. These solutions can also contain stabilizing and / or buffering components and are subdivided into unit doses in the form of ampoules or vials. Solutions for oral administration can also be prepared as dry formulations that are reconstituted with a suitable solvent just prior to use.
[0028]
The compounds of the invention can also be used in combination with other active ingredients in formulations for treating or preventing conditions associated with infection by, for example, Helicobacter pylori in the human gastric mucosa. Such other active ingredients may be antibacterial agents, in particular:
Β-lactam antibiotics such as amoxicillin, ampicillin, cephalothin, cefaclor or cefixime;
Macrolides such as erythromycin or clarithromycin;
Tetracyclines, such as tetracycline or doxycycline;
Aminoglycosides, such as gentamicin, kanamycin or amikacin;
Quinolones, such as norfloxacin, ciprofloxacin or enoxacin;
Other, such as metronidazole, nitrofurantoin or chloramphenicol; or
Formulations containing bismuth salts such as bismuth hypocitrate, bismuth subsalicylate, bismuth subcarbonate, bismuth subnitrate or bismuth subgallate.
[0029]
The compounds of the present invention can also be used together with other active ingredients in formulations for treating or preventing conditions associated with, for example, drug-induced gastric ulcers. Such other active ingredients may be NSAIDs, NO-NSAIDs, COX-2 inhibitors or bisphosphonates.
[0030]
Intermediate
Another aspect of the invention is a novel intermediate compound that is useful for the synthesis of the compounds according to the invention.
Thus, the present invention provides a compound of formula (IV)
Embedded image
(Wherein R1, R2, RFive, R6And Het are as defined for Formula I above).
【Example】
[0031]
1. Production of the compounds of the invention
Example 1 . 1
Synthesis of 8-{[(2,4-dimethylthien-3-yl) methyl] amino} -2,3-dimethylimidazo [1,2-a] pyridine-6-carboxamide
Embedded image
[0032]
Mesylate of 8-amino-2,3-dimethylimidazo [1,2-a] pyridine-6-carboxamide (0.36 g, 1 mmol), 2,4-dimethylthiophene-3-carbaldehyde (0.17 g, 1. 2 mmol), zinc chloride (0.15 g, 1.1 mmol) and sodium cyanoborohydride (0.14 g, 2.1 mmol) were added to methanol (20 ml) and the mixture was refluxed in a nitrogen atmosphere for 20 hours. After cooling to room temperature, triethylamine (0.5 ml) was added to the reaction mixture and the solvent was evaporated under reduced pressure. The residue was purified by column chromatography on silica gel using methylene chloride: methanol (10: 1) as eluent to give 6 mg (2%) of the title compound.
1H-NMR (300 MHz, DMSO-d6) 2.15 (s, 3H), 2.25 (s, 3H), 2.35 (s, 3H), 2.45 (s, 3H), 4.3 (d, 2H), 5.4 ( t, 1H), 6.6 (s, 1H), 6.9 (s, 1H), 7.3 (bs, 1H), 7.95 (s, 1H), 8.1 (s, 1H)
[0033]
Example 1 . 2-1 . 23
Examples 1.2 to 1.23 are prepared according to the procedure shown in Scheme 1 (see below).
[0034]
Embedded image
[0035]
The following compounds were used as starting compound A in these reactions.
Embedded image
[0036]
The following compounds were used as the reaction compound D.
Embedded image
[0037]
That is, the following compound F is produced.
[Table 1]
[0038]
General procedure:
A (1 eq) and sodium hydroxide (5 eq) are dissolved in ethanol (95%) and the mixture is refluxed for 24 hours. The solvent is evaporated under reduced pressure and water is added to the residue. Acetic acid is added to adjust the pH and the precipitated solid is isolated by filtration, washed with water and dried to give the title compound of interest (B).
B (1 eq), C (1 eq), D (1 eq) and E (2 eq) are added to dimethylformamide and the mixture is stirred at room temperature for 24 h. The solvent is evaporated under reduced pressure and the residue is purified by chromatography using silica gel and methylene chloride / methanol as eluent to give the desired compound F.
[0039]
[Table 2]
[0040]
Biological test
1. In vitro experiments
Inhibition of acid secretion in isolated rabbit gastric glands.
The inhibitory effect on acid secretion in vitro in isolated rabbit gastric glands was described by Berglindh et al. (1976) Acta Physiol. Scand. 97, 401-414.
[0041]
H+, K+-Determination of ATPase activity
Membrane vesicles (2.5-5 μg) were added to 2 mM MgCl2Incubated for 15 minutes at + 37 ° C. in 18 mM Pipes / Tris buffer pH 7.4 containing 10 mM KCl and 2 mM ATP. ATPase activity was measured according to LeBel et al. (1978) Anal. Biochem. 85, 86-89, evaluated as inorganic phosphate release from ATP.
[0042]
2. In vivo experiments
Inhibitory effect on acid secretion in female rats
Female rats of the Sprague-Dawly strain are used. In order to collect gastric acid secretions and administer the test substance, a cannulated fistula is provided at the upper part of the animal's stomach (lumen) and duodenum respectively. A recovery period of 14 days after surgery is given before the start of the study.
No food other than water is given to the animals for 20 hours prior to the secretion test. The stomach is washed repeatedly with tap water (+ 37 ° C.) via a gastric cannula and 6 ml of Ringer-Glucose solution is administered subcutaneously. Stimulation of acid secretion by infusion of pentagastrin and carbachol (20 and 110 nmol / kg · h, respectively) for 2.5-4 hours (1.2 ml / h, subcutaneous) during which time gastric secretions of 30 Collect in minutes. Test substances or vehicle are given 60 minutes after the start of irritation (intravenous and duodenal administration, 1 ml / kg) or 2 hours before the start of irritation (oral administration, 5 mg / kg, gastric cannula closed). To study the duration of action, the time interval between administration and stimulation can be increased. Gastric juice samples are titrated with 0.1 M NaOH to pH 7.0 and acid excretion is calculated as the product of titration standard volume and concentration.
Other calculations are based on group mean responses from 4-6 rats. When administered during stimulation; acid excretion during the period after administration of test substance or vehicle is expressed as a fractional response, with acid excretion during the 30 minute period prior to administration being 1.0. Percent inhibition is calculated from the fractional response elicited by the test compound and vehicle. When administered prior to stimulation; percent inhibition is calculated directly from the acid excretion recorded after the test compound and vehicle.
[0043]
Bioavailability in rats
Adult rats of the Sprague-Dawly strain are used. 1-3 days before the experiment, all rats are prepared by cannulation of the left carotid artery under anesthesia. Rats used for intravenous experiments are also cannulated into the jugular vein (Popovic (1960) J. Appl. Physiol. 15, 727-728). The cannula is externalized at the neck nape.
Blood samples (0.1-0.4 g) are collected repeatedly from the carotid artery at intervals up to 5.5 hours after a given dose. Freeze samples until analysis of test compound.
Bioavailability is determined by blood / plasma from rats or dogs by (i) intraduodenal (id) or oral (po) and (ii) intravenous (iv) administration, respectively. Evaluation is made by calculating the quotient of the area under the concentration curve (AUC). The area under the blood concentration versus time curve, AUC, is determined by the log / linear trapezoidal formula and extrapolated to infinity by dividing the last determined blood concentration by the elimination rate constant at the end of life. Systemic bioavailability (% F) by intraduodenal or oral administration,
F (%) = (AUC (po or o.d.) / AUC (i.v.)) × 100
Calculate as
[0044]
Inhibition of gastric acid secretion and bioavailability in conscious dogs.
Use any sex Labrador Retriever or Harrier dog. Animals are equipped with a duodenal fistula to administer the test compound or vehicle and a cannulated gastric fistula or Heidenhain small stomach to collect gastric secretions.
Prior to the secretion test, the animals are fasted for about 18 hours but given water ad libitum. Histamine dihydrochloride (12 ml / h) is infused at a dose that produces about 80% of the individual maximal secretory response, up to 6.5 hours to stimulate gastric acid secretion, and gastric juice is collected in successive 30 minute fractions. . One or 1.5 hours after the start of histamine infusion, test substance or vehicle is administered orally, i.d. in a volume of 0.5 ml / kg body weight. Or iv. Administer. In the case of oral administration, it should be noted that the test compound is administered to the acid-secreting main stomach of HEIDENHAIN small stomach dogs.
[0045]
The acidity of the gastric juice sample is determined by titration to pH 7.0 and acid excretion is calculated. Acid excretion during the collection period after administration of the test substance or vehicle is expressed as a fractional response, with the acid excretion in the fraction prior to administration being 1.0. Percent inhibition is calculated from the fractional response elicited by the test compound and vehicle.
Blood samples for analysis of test compound concentrations in plasma are taken at intervals up to 4 hours after administration. Plasma is separated and frozen within 30 minutes after collection and analyzed later. Oral or i.d. in a rat model. Systemic bioavailability (F%) after administration is calculated as described above.
Claims (19)
Hetは、オルト位でR3およびR4基で置換された、少なくとも1個の窒素、酸素または硫黄原子を有する4員、5員または6員の芳香族または脂肪族ヘテロ環式基であり;
R1は、H、CH3またはCH2OHであり;
R2は、CH3またはCH2CH3であり;
R3およびR4は独立して、H、C1−C6アルキル、ヒドロキシル化C1−C6アルキルまたはハロゲンの群から選択され;
R5およびR6は、式Iの化合物に≦600の分子量を与えるC、H、N、O、S、Se、Pおよびハロゲン原子を含む独立して選択される置換基であり;そして
Xは、NHまたはOである〕の化合物またはその製薬上許容される塩。Formula I
Het is a 4-, 5- or 6-membered aromatic or aliphatic heterocyclic group having at least one nitrogen, oxygen or sulfur atom substituted in the ortho position with R 3 and R 4 groups;
R 1 is H, CH 3 or CH 2 OH;
R 2 is CH 3 or CH 2 CH 3 ;
R 3 and R 4 are independently selected from the group of H, C 1 -C 6 alkyl, hydroxylated C 1 -C 6 alkyl or halogen;
R 5 and R 6 are independently selected substituents including C, H, N, O, S, Se, P and halogen atoms that give the compound of formula I a molecular weight of ≦ 600; and X is , NH or O] or a pharmaceutically acceptable salt thereof.
R1が、H、CH3またはCH2OHであり;
R2が、CH3またはCH2CH3であり;
R3およびR4が独立して、水素原子、C1−C6アルキル、ヒドロキシル化C1−C6アルキルまたはハロゲンであり;
R5およびR6が、式Iの化合物に≦600の分子量を与えるC、H、N、O、S、Se、Pおよびハロゲン原子を含む独立して選択される置換基であり;
Xが、NHまたはOであり;そして
Yが、S、SO、SO2、O、NH、C=NまたはN=Cである
請求項1に記載の化合物またはその塩。Het
R 1 is H, CH 3 or CH 2 OH;
R 2 is CH 3 or CH 2 CH 3 ;
R 3 and R 4 are independently a hydrogen atom, C 1 -C 6 alkyl, hydroxylated C 1 -C 6 alkyl or halogen;
R 5 and R 6 are independently selected substituents including C, H, N, O, S, Se, P and halogen atoms that give the compound of formula I a molecular weight of ≦ 600;
X is NH or O; and Y is S, SO, SO 2, O, NH, a compound or salt thereof according to claim 1 is a C = N or N = C.
R1が、CH3またはCH2OHであり;
R2が、CH3またはCH2CH3であり;
R3およびR4が独立して、H、C1−C6アルキル、ヒドロキシル化C1−C6アルキルまたはハロゲンであり;
R5およびR6が独立して、
(a)H、
(b)C1−C6アルキル、
(c)ヒドロキシル化C1−C6アルキル、
(d)C1−C6アルコキシ置換C1−C6アルキル、
(e)C2−C6アルケニル、
(f)C2−C6アルキニル、
(g)ハロゲン化C1−C6アルキル、
(h)C3−C8シクロアルキル、
(i)シクロアルキル置換C1−C6アルキル、
(j)アリール(該アリールは、場合によりハロゲン、C1−C6アルキル、C1−C6アルコキシ、CF3、OH、ニトロ、アミノ、C1−C6アルキル−NH−、(C1−C6アルキル)2−N−またはCNから選択される1個またはそれ以上の置換基で置換されたフェニル、ピリジル、チエニルまたはフラニルである)、
(k)アリール置換C1−C6アルキル(該アリールは、場合によりハロゲン、C1−C6アルキル、C1−C6アルコキシ、CF3、OH、ニトロ、アミノ、C1−C6アルキル−NH−、(C1−C6アルキル)2−N−またはCNから選択される1個またはそれ以上の置換基で置換されたフェニル、ピリジル、チエニルまたはフラニルである)、
(l)R8−アルキル(R8は、NH2C=O−、C1−C6アルキル−NHC=O−、(C1−C6アルキル)2NC=O−、C1−C6アルキル−OOC−、NH2SO2−、C1−C6アルキル−SO2NH−、ArSO2NH−、シアノ、C1−C6アルキル−CO−NH−、C1−C6アルキル−OOCNH−、C1−C6アルキル−O−、C1−C6アルキル−SO−、C1−C6アルキル−S−、C1−C6アルキル−SO2−、C1−C6アルキル−C=O−、NH2−、C1−C6アルキル−NH−、(C1−C6アルキル)2N−、ArCONH−、ArNHSO2−、(Ar)2−N−SO2−、C1−C6アルキル−NHSO2−、ArS−、ArSO−、ArSO2−、ArC=O−、NH2CONH−C1−C6アルキル−NHCONH−、(C1−C6アルキル)2−NCONH−、ArNHCONH−、(C1−C6)2−N−SO2−、Ar−O−、Ar−NH−、Ar(C1−C6)N−または(C1−C6)2NSO2−であり;ここで、Arは、場合によりハロゲン、C1−C6アルキル、C1−C6アルコキシ、CF3、OH、CN、ニトロ、アミノ、C1−C6アルキル−NH−または(C1−C6アルキル)2N−から選択される1個またはそれ以上の置換基で置換されたフェニル、ピリジル、チエニルまたはフラニルである)であり;
Xが、NHまたはOであり;そして
Yが、S、SO、SO2、O、NH、C=NまたはN=Cである
請求項1に記載の化合物またはその塩。Het
R 1 is CH 3 or CH 2 OH;
R 2 is CH 3 or CH 2 CH 3 ;
R 3 and R 4 are independently H, C 1 -C 6 alkyl, hydroxylated C 1 -C 6 alkyl or halogen;
R 5 and R 6 are independently
(A) H,
(B) C 1 -C 6 alkyl,
(C) hydroxylated C 1 -C 6 alkyl,
(D) C 1 -C 6 alkoxy-substituted C 1 -C 6 alkyl,
(E) C 2 -C 6 alkenyl,
(F) C 2 -C 6 alkynyl,
(G) halogenated C 1 -C 6 alkyl,
(H) C 3 -C 8 cycloalkyl,
(I) cycloalkyl-substituted C 1 -C 6 alkyl,
(J) aryl (the aryl, optionally halogen, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, CF 3, OH, nitro, amino, C 1 -C 6 alkyl -NH -, (C 1 - C 6 alkyl) is phenyl, pyridyl, thienyl or furanyl substituted with one or more substituents selected from 2 -N— or CN),
(K) aryl-substituted C 1 -C 6 alkyl (wherein the aryl is optionally halogen, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, CF 3 , OH, nitro, amino, C 1 -C 6 alkyl- NH—, (C 1 -C 6 alkyl) 2 —N— or phenyl substituted with one or more substituents selected from CN, pyridyl, thienyl or furanyl),
(L) R 8 -alkyl (R 8 is NH 2 C═O—, C 1 -C 6 alkyl-NHC═O—, (C 1 -C 6 alkyl) 2 NC═O—, C 1 -C 6 alkyl -OOC-, NH 2 SO 2 -, C 1 -C 6 alkyl -SO 2 NH-, ArSO 2 NH-, cyano, C 1 -C 6 alkyl -CO-NH-, C 1 -C 6 alkyl -OOCNH -, C 1 -C 6 alkyl -O-, C 1 -C 6 alkyl -SO-, C 1 -C 6 alkyl -S-, C 1 -C 6 alkyl -SO 2 -, C 1 -C 6 alkyl - C═O—, NH 2 —, C 1 -C 6 alkyl-NH—, (C 1 -C 6 alkyl) 2 N—, ArCONH—, ArNHSO 2 —, (Ar) 2 —N—SO 2 —, C 1 -C 6 alkyl -NHSO 2 -, ArS-, ArSO-, ArSO 2 -, ArC = O-, NH 2 CONH-C 1 -C 6 alkyl -NH ONH -, (C 1 -C 6 alkyl) 2 -NCONH-, ArNHCONH -, ( C 1 -C 6) 2 -N-SO 2 -, Ar-O-, Ar-NH-, Ar (C 1 -C 6) N-or (C 1 -C 6) 2 NSO 2 - and; wherein, Ar is optionally halogen, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, CF 3, OH, CN, Phenyl, pyridyl, thienyl or furanyl substituted with one or more substituents selected from nitro, amino, C 1 -C 6 alkyl-NH— or (C 1 -C 6 alkyl) 2 N— );
X is NH or O; and Y is S, SO, SO 2, O, NH, a compound or salt thereof according to claim 1 is a C = N or N = C.
R1が、CH3またはCH2OHであり;
R2が、CH3またはCH2CH3であり;
R3およびR4が独立して、水素およびC1−C6アルキルであり;
R5およびR6が独立して、H、C1−C6アルキル、ヒドロキシル化C1−C6アルキルまたはC1−C6アルコキシ置換C1−C6アルキルであり;
Xが、NHであり;そして
Yが、S、O、NH、C=NまたはN=Cである
請求項1に記載の化合物またはその塩。Het
R 1 is CH 3 or CH 2 OH;
R 2 is CH 3 or CH 2 CH 3 ;
R 3 and R 4 are independently hydrogen and C 1 -C 6 alkyl;
R 5 and R 6 are independently H, C 1 -C 6 alkyl, hydroxylated C 1 -C 6 alkyl or C 1 -C 6 alkoxy substituted C 1 -C 6 alkyl;
The compound or a salt thereof according to claim 1, wherein X is NH; and Y is S, O, NH, C = N or N = C.
R1が、H、CH3またはCH2OHであり;
R2が、CH3またはCH2CH3であり;
R3が、C1−C6アルキルであり;
R4が、C1−C6アルキルであり;
R5およびR6が、それぞれ水素、C1−C6アルキル、ヒドロキシル化C1−C6アルキル、C1−C6アルコキシ−(C1−C6アルキル)、ヒドロキシル化C1−C6アルコキシ−(C1−C6アルキル)から独立して選択されるか、またはR5およびR6が、それらが結合している窒素原子と一緒になって、モルホリンまたはヒドロキシル化ピロリジンを形成してもよく;
Xが、NHであり;そして
Yが、SまたはOである
請求項1に記載の化合物。Het
R 1 is H, CH 3 or CH 2 OH;
R 2 is CH 3 or CH 2 CH 3 ;
R 3 is C 1 -C 6 alkyl;
R 4 is C 1 -C 6 alkyl;
R 5 and R 6 are hydrogen, C 1 -C 6 alkyl, hydroxylated C 1 -C 6 alkyl, C 1 -C 6 alkoxy- (C 1 -C 6 alkyl), hydroxylated C 1 -C 6 alkoxy, respectively. Independently selected from-(C 1 -C 6 alkyl), or R 5 and R 6 together with the nitrogen atom to which they are attached may form morpholine or hydroxylated pyrrolidine. Often;
2. A compound according to claim 1 wherein X is NH; and Y is S or O.
R1が、CH3であり;
R2が、CH3であり;
R3が、C1−C6アルキルであり;
R4が、C1−C6アルキルであり;
R5およびR6が、それぞれ水素、C1−C6アルキル、ヒドロキシル化C1−C6アルキル、C1−C6アルコキシ−(C1−C6アルキル)、ヒドロキシル化C1−C6アルコキシ−(C1−C6アルキル)から独立して選択されるか、またはR5およびR6が、それらが結合している窒素原子と一緒になって、モルホリンまたはヒドロキシル化ピロリジンを形成してもよく;
Xが、NHであり;そして
Yが、SまたはOである
請求項1に記載の化合物。Het
R 1 is CH 3 ;
R 2 is CH 3 ;
R 3 is C 1 -C 6 alkyl;
R 4 is C 1 -C 6 alkyl;
R 5 and R 6 are hydrogen, C 1 -C 6 alkyl, hydroxylated C 1 -C 6 alkyl, C 1 -C 6 alkoxy- (C 1 -C 6 alkyl), hydroxylated C 1 -C 6 alkoxy, respectively. Independently selected from-(C 1 -C 6 alkyl), or R 5 and R 6 together with the nitrogen atom to which they are attached may form morpholine or hydroxylated pyrrolidine. Often;
2. A compound according to claim 1 wherein X is NH; and Y is S or O.
b)式VIIIの化合物(式中、R1、R2、HetおよびXは式Iで定義したとおりである)を、o−ベンゾトリアゾール−1−イル−N,N,N’,N’−テトラメチルウロニウムテトラフルオロボレート(TBTU)のようなカップリング試薬の存在下に、不活性溶剤中で標準的条件下で、式IXのアミノ化合物
b) a compound of formula VIII, wherein R 1 , R 2 , Het and X are as defined in formula I, and o-benzotriazol-1-yl-N, N, N ′, N′— An amino compound of formula IX under standard conditions in an inert solvent in the presence of a coupling reagent such as tetramethyluronium tetrafluoroborate (TBTU)
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| SE0102808A SE0102808D0 (en) | 2001-08-22 | 2001-08-22 | New compounds |
| PCT/SE2002/001489 WO2003018582A1 (en) | 2001-08-22 | 2002-08-21 | Novel imidazopyridine compounds with therapeutic effect |
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| SE0301904D0 (en) | 2003-06-26 | 2003-06-26 | Astrazeneca Ab | Novel imidazopyridine compound II with therapeutic effect |
| AU2004285394B2 (en) | 2003-11-03 | 2009-01-08 | Astrazeneca Ab | Imidazo (1,2-A) pyridine derivatives for the treatment of silent gastro-esophageal reflux |
| EP1711498A2 (en) * | 2004-01-26 | 2006-10-18 | Altana Pharma AG | 1,2,4-triazolo¬1,5-a|pyridines as gastric acid secretion inhibitors |
| EA011512B1 (en) * | 2004-12-17 | 2009-04-28 | Ракуалиа Фарма Инк. | Chromane derivatives as acid pump antagonists |
| GB0513423D0 (en) * | 2005-06-30 | 2005-08-03 | Glaxo Group Ltd | Novel compounds |
| WO2007107827A1 (en) * | 2006-03-17 | 2007-09-27 | Raqualia Pharma Inc. | Chromane derivatives |
| WO2008059373A1 (en) * | 2006-11-17 | 2008-05-22 | Raqualia Pharma Inc. | Imidazo [1, 2-a] pyrazine derivatives and their use as acid pump antagonists |
| KR200449743Y1 (en) * | 2008-03-11 | 2010-08-05 | 주식회사 보루네오가구 | Fixed structure of the upper screen for partition |
| FI20086158A0 (en) | 2008-12-03 | 2008-12-03 | Mikael Dahlstroem | imidazopyridine |
| RU2586276C2 (en) | 2009-07-09 | 2016-06-10 | Раквалиа Фарма Инк. | Acid pump antagonist for treating diseases associated with pathological impairment of gastrointestinal motility |
| ES2530884T3 (en) * | 2009-09-24 | 2015-03-06 | Hoffmann La Roche | Imidazopyridine or imidazopyrimidine derivatives as phosphodiesterase 10A inhibitors |
| FR2962437B1 (en) | 2010-07-06 | 2012-08-17 | Sanofi Aventis | IMIDAZOPYRIDINE DERIVATIVES, PROCESS FOR PREPARING THEM AND THEIR THERAPEUTIC APPLICATION |
| EP3381917B1 (en) * | 2013-01-31 | 2021-09-08 | Bellus Health Cough Inc. | Imidazopyridine compounds and uses thereof |
| MY169128A (en) * | 2013-04-30 | 2019-02-18 | Hoffmann La Roche | Pd-catalyzed coupling of pyrazole amides |
| CN106279151A (en) * | 2015-06-26 | 2017-01-04 | 江苏太瑞生诺生物医药科技有限公司 | Solid form of 5-(2-(8-((2,6-dimethyl benzyl) amino)-2,3-dimethyl-imidazo [1,2-a] pyridine-6-formamido) ethyoxyl)-5-oxopentanoic acid and preparation method thereof |
| AU2020228760A1 (en) | 2019-02-25 | 2021-09-23 | Glaxosmithkline Intellectual Property (No. 3) Limited | Treatment with P2X3 modulators |
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| ZA81219B (en) * | 1980-01-23 | 1982-01-27 | Schering Corp | Imidazo (1,2-a) pyridines ,process for their preparation and pharmaceutical compositions containing them |
| EP0068378B1 (en) * | 1981-06-26 | 1986-03-05 | Schering Corporation | Novel imidazo(1,2-a)pyridines and pyrazines, processes for their preparation and pharmaceutical compositions containing them |
| US4725601A (en) * | 1985-06-04 | 1988-02-16 | Fujisawa Pharmaceutical Co., Ltd. | Certain imidazo[1,2-a]pyridines useful in the treatment of ulcers |
| EP0228006A1 (en) * | 1985-12-16 | 1987-07-08 | Fujisawa Pharmaceutical Co., Ltd. | Imidazopyridine compounds and processes for preparation thereof |
| IL108520A (en) * | 1993-02-15 | 1997-09-30 | Byk Gulden Lomberg Chem Fab | 2, 3, 8-TRISUBSTITUTED IMIDAZO £1, 2-a| PYRIDINE DERIVATIVES, PROCESSES FOR THE PREPARATION THEREOF AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM |
| UA48122C2 (en) * | 1993-10-11 | 2002-08-15 | Бік Гульден Ломберг Хеміше Фабрік Гмбх | IMIDAZO [1,2-a] PYRIDINE ALCOXYALKYL CARBAMATES, METHOD OF PREPARATION AND MEDICINAL PRODUCTS BASED ON THEM |
| CN1046726C (en) * | 1994-07-28 | 1999-11-24 | 比克·古尔顿·劳姆贝尔格化学公司 | Imidazopyridine-pyrrolidone, its preparation method and medicinal use |
| SE9801526D0 (en) * | 1998-04-29 | 1998-04-29 | Astra Ab | New compounds |
| SE9802794D0 (en) * | 1998-08-21 | 1998-08-21 | Astra Ab | New compounds |
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| CA2456350A1 (en) | 2003-03-06 |
| PL367971A1 (en) | 2005-03-07 |
| HUP0401350A3 (en) | 2009-03-02 |
| RU2004103628A (en) | 2005-06-27 |
| NZ531110A (en) | 2005-10-28 |
| NO20040760L (en) | 2004-02-20 |
| RU2294935C2 (en) | 2007-03-10 |
| EP1421083A1 (en) | 2004-05-26 |
| IL160143A0 (en) | 2004-06-20 |
| IS7159A (en) | 2004-02-20 |
| ZA200401114B (en) | 2005-06-22 |
| MXPA04001402A (en) | 2004-05-27 |
| KR20040036723A (en) | 2004-04-30 |
| US20040220209A1 (en) | 2004-11-04 |
| AR035465A1 (en) | 2004-05-26 |
| HUP0401350A2 (en) | 2004-12-28 |
| SE0102808D0 (en) | 2001-08-22 |
| CN100343252C (en) | 2007-10-17 |
| CN1543464A (en) | 2004-11-03 |
| WO2003018582A1 (en) | 2003-03-06 |
| BR0211846A (en) | 2004-09-08 |
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